Used for roughing at port polishing, stepped correction. I attached it to an electric rutaire of a flexible shaft and used it. Working time will be shortened by cutting it as interesting without bouncing. It is an essential item for rough cutting work.

It is convenient because it can be used to push at the tip because it is a cannonball type with a blade to the tip. Moreover, it can be sharpened cleanly, so it is handy for cutting work that requires delicacy. Because it is cemented carbide, metal can be scraped off.